Method and apparatus for the removal of hydrogen sulfide from a process gas stream
Номер патента: CA2130223C
Опубликовано: 02-11-1999
Автор(ы): Allan Charles Huestis, Charles Walter Sanzenbacher
Принадлежит: Georgetown Steel Corp
Опубликовано: 02-11-1999
Автор(ы): Allan Charles Huestis, Charles Walter Sanzenbacher
Принадлежит: Georgetown Steel Corp
Реферат: An improved method and apparatus for forming metallized iron by direct reduction of particulate iron oxide is disclosed. Spent reducing gas is recycled from the reduction furnace through a cooler-scrubber and a catalyst-containing stoichiometric gas reformer. Upon removing the process gas from the cooler-scrubber, it is contacted with a chlorine dioxide spray, then compressed and cooled, the sulfur compound removed, and the process gas recycled either into the furnace cooling zone, or directly into the reformer, or divided and directed into both uses. Thus, most of the sulfur containing components of the spent reducing gas are removed, thereby reducing the sulfur contamination of the gas reformer catalyst. Reducing sulfur contamination of the gas reformer catalyst improves the overall efficiency of the direct reduction process. Either high sulfur ores, or high sulfur process gas, or both can be utilized in the invented process.
Method and smelting unit for pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials
Номер патента: US20230416869A1. Автор: Rolf Degel,Timm Lux,Nikolaus Peter Kurt Borowski,Frank Marlin Kaußen. Владелец: SMS group GmbH. Дата публикации: 2023-12-28.